Improvement in



2 Sheets-Sheet 2. J'. R. WHERRY.

LAWN-SEATS. l No, 193,738. Patented my 31,1877.

N.FF|'ERS, PHOTO-LITHOGRFHER, WASHINGTON,y D C.

JOIIN R.. WHERRY, OF LITTLE ROCK, ARKANSAS.

IMPROVEMENT LAWN-SEATS.

Specification forming part of Letters Patent No. 193,738, dated July 31, 1877 application filed March 15, 1877.

To all whom it 'may concern:

Be it known that I, JOHN R. WHERRY, of Little Rock, in the county of Pulaski and State of Arkansas, have invented certain Improvement in Lawn-Seats, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification.

This invention is -an improvement on my lawn-seat for which l obtained a patent dated the 31st day of Gctober, 1876, No. 183,995.

1n my present improvement the mechanism for operating the back and cover differs from that of my former patent. In the former patent the seat was fixed to a spring-platform, which descended with the weight of a person thereon, and a vertical rack, as the platform descended, operated, through cog-gears, upon another rack-bnr, to throw up the cover and back.

In my present improvement the stand is fixed to a stationary support, and the back and cover are raised by connection to a pitman raised by a treadle, which is `jointed, to allow its outer end to be folded up against the stand.

In the drawings. Figure l is an axial Vertical section with the back and cover down, and showing, by dotted lines, the treadle folded up against the seat. Fig. 2 is an axial section with the back and cover up and the treadle down. Fig. 3 is a top view with the cover removed. Fig. 4 is a top view of the horizontal frame. Fig. 5 is a top view of the base.

A is the base, to which is attached the post or stand B of the seat. The post B has at top a horizontal frame, C, slotted at c1 for the passage of the pitman D. The lower end of the pitman is hinged to the inner end of the treadle E. The treadle E is supported upon a fulcrum, e. Its outer part E is jointed to the inner part with a sort of rule-joint, c1, which limits the movement of the joint as the part E descends, a toe, e2, of the part E coming in contact with the bottom of the other part, and the continued descent of the end E causing the lifting of the pitman D, and with it the fronts of the cover and back. I prefer to have upon the base Av and frame C flanges a and c, to it around the bottom and top of the post B. The pitman D curves backwardly near the top, as shown, so that as the pitman moves upward its upper and front side will slide against the front end c2 of the slot c1, and cause said end torhave a backward movement as it rises, and by its connection with the cover and back these are lifted from the seat, and moved backward into the position shown in Fig. 2. The front part of the seat F is hinged directly to the fore arms of the spider or frame C, and the rear arm of frame C is hinged to the rear end of a lever-frame, Gr, to which the upper end of the pitman D is hinged at g. The branching fore arms gl of the frame Gare hinged by the pintle H to the brackets of the backboard I, thus connecting the back to the irame C. The pintle-pin H also passes through an arm, J, hinged atj to the inside ofthe upper part of the cover K, thus connecting the cover to the backboard, and to the frame C. The end j of the arm- J rests against the lower part of the seat-back when the back and cover are raised, and at such time the forwardlybent end l1 of the pitman rests against the end j', and the ends g2 of the arms g1 rest' against the upper part of the back, so that the parts d1 g2g" hold the back and top steadily in position upon their hinges when they are in position shown in Fig. 2. The seat F has a rear projection, f, which rests upon a spring, L, and said spring extends beneath the pitman.

When the seat is occupied the spring L is depressed by the weight of the sitter, so that it does not act to throw forward the upper end of the pitman 5 but as soon as the person rises a forward movement is given to the upper end of the pitman by the spring, and the cover and back descend by gravity into the closed positionshown in Fig. 1. This closing movement is accelerated by folding back the outer end E of the treadle-lever, as shown by dotted lines in Fig. 1, so that it will not be in position for its weight to act much as a check to such descent of the back and cover.

d2 is a projection at the rear side of the pitman, which engages the rear end c3 of slot c1, when theparts are in position shown in Fig. 2, and prevents the farther backward movement of the back, 811e.

It will be observed that the connection J of the cover allows it a certain degree of movement relatively to the back, as shown by comparison of,]`igs..l:.and 2, thecover, When 3. The combination, with the hingedsezit closed, covering'the edge zot' the back, but, 15K-having:projectionjyamdlthe` pitman D-of when open,`f'il1ing to the rear of said edge. l the spring" L, substantially as and'for the pur- I claim as my inventionpose set forth. 1. The combination of treadle E, pitman D, The combination of treadle E, pitman D, hinged back I, and cover K, substantially as lever G, pintlo H, arm J, cover K, back I, and

2. The combination of pitman D, having a JOHN R. WHERRY. bent upper portion workingin a. guide-s101301, .Witnessesz lever Gr, and back I, connected' to sadA lever LfvGf. A. D. "BAUM,

G, substantially as set forth. N. R. CASEY. 

